Using the same search term in the search dialog gives me 508 results in 293 articles in 104 resources. Most of which point "amillennial-ISM" articles. Right clicking on "amillennial-ISM" gives me 5 resources, 4 dictionary type entries and 1 monograph, Discovering the Mystery of the Unity of God. I've moved my theological dictionaries toward the top of my resource priority list to no avail in terms of spotting a definition for amillennial. This seems like odd behavior to me.